Combination plug and valve.



G. R. YEOMANS. COMBINATION PLUG AND VALVE.

I APPLICATION FILED JULY 27,1912.

1,093,961. Patnted Apr. 21, 1914.

Z 6 al'l'owu x AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA c4 UNITED STATES PATENT OFFICE.

eusrnvus R. Ynoivrinns, or MARIETTA, OHIO.

COMBINATION PLUG AND VALVE.

Specification of Letters Patent.

Patented Apr. 21, 1914.

Application filed July 27, 1912. Serial No. 711,804.

. metal drums or casks used for shippinghigh gravity gasolene, though it is adapted for use in any kind of an iron tank or vessel, the contents of which are under pressure. By the use of the valve and plug shown and described herein, from one to seven gallons of gasolene of 86x88 gravity may be saved from each fifty-five gallon drum or cask. Heretofore, when the plugs of these drums were removed, the gasolene being under pressure would immediately begin to flow and when the .gasolene is agltated, the situation gets worse. Manufacturers of high gravity gasolene have been trying to overcome this trouble for some years. The ordinary way of handling these drums has been to loosen the plug about three turns and let the pressure leak off with a consequent loss by evaporation of from one to seven gallons from each drum.

The object of the present invention is, therefore, to combine in a single structure, a plug adapted to be screwed into the ordinary threaded opening of a gasolene drum, said plug in turn carrying a second plug adapted to form a fluid tight joint with the first plug, the first named plug carrying a spider and spring actuated valve, said valve closing as the second plug is unscrewed, but being arranged to be depressed when the nozzle of a hose is screwed into the place of the second plug so that the gasolene may be caused to flow when the hose is in position to receive it.

Further objects and advantages of the invention will be set forth in the detailed description which now follows.

Referring to the drawing Figure 1 is a side elevation of a double plug and valve constructed in accordance with the invention. Fig. 2 is a sectional view therethrough with certain of the parts in elevation, and Fig. 3 is a plan View of the main plug with the smaller plug removed.

Like numerals designate corresponding parts in all of the figures of the drawing.

Referring to the drawing the numeral 5 designates the internally threaded neck of a gasolene drum 6. This neck is adapted to have threaded thereinto, the body portion 7 of a main plug 8. The body portion 7 is surrounded by a washer 9 adapted, when the main-plug 7 is screwed in position, to form a tight joint between said main plug and the neck 5.

The main plug is provided with an angular head 10 and an auxiliary plug comprising a body portion 11, a flange 12 and an angular head 18 is adapted to be screwed into engagement with the internally threaded portion 14: of the main plug 7 and a Washer 15 is disposed between the flange and the upper face of the angular head 10 whereby a tight joint is formed between the main and auxiliary plugs. A valve stem 16 is slidable within a spider 17 and is carried by the body 7 of the main plug, and a-spring 18 surrounds this valve stem and bears between said spider and a head 20 carried by said stem. A valve disk 21, preferably of leather, and a metallic retaining disk 22 are mounted upon the lower end of the valve stem. Under normal conditions, the main plug may be screwed into position within the drum by the application of a wrench or like tool to the angular head 10, then the auxiliary plug is screwed into position by the application of a wrench to the angular head 13, the washers 9 and 15 making tight joints, as will be readily understood. When the auxiliary plug is screwed into position, it contacts with head 20 and depresses the valve stem. When it is desired to remove the contents of the drum, the auxiliary plug is unscrewed and as .it is unscrewed, the spring 18 acts to force the valve 21 to a seating upon the W lower end of the main plug, whereby the escape of the gasolene under pressure is prevented. When a threaded hose bib is screwed into engagement with the threads 1 1, the end thereof, contacting with head 20, depresses the valve and permits the gasolene to flow through said hose, said hose not being shown.

I am aware of the fact that it has heretofore been proposed to employ check valves for the purpose of preventing the escape ofliquids under pressure when dispensing them from tanks of various kinds, but in all of these devices with which I am familiar, it has been necessary to make special changes in the containers or tanks to accommodate these valves. It will be apparent that in the present structure I have provided a double plug which may be arranged in such manner as to be used with the ordinary type of drum or container, and without any change in the latter.

While the elements shown and described are well adapted to serve the purposes for which they are intended, it is to be understood that the invention is not limited to the precise construction set forth, but includes within its purview such changes as may be made within the scope of the appended claim.

Having described my invention, what I claim is A closure of the character described, comprising in combination with a tubular body portion having an externally threaded lower portion and an internally threaded upper portion, an overhanging external flange carried by said body portion, an annular packing member disposed beneath said flange, that portion of the body above said flange having an angularly formed side face and a plane top face, an imperforate closure plug having its lower portion externally threaded for engagement with the threaded part of the body portion, a flange integral with said plug and overhanging the plane upper face of the body portion, an annular packing member disposed between said flange and said face, an angularly formed head upon said plug above said flange, a spider spanning the lower end of the body portion, a valve stem slidable through said spider, a valve of such size as to span the entire opening in said body portion and to have a seating upon the lower face of said body portion carried by said stein, a transverse head carried by said stem and substantially spanning the bore of the body portion, said head when the valve is closed, extending far enough up into said body portion to lie within the internally threaded part thereof, but lying some distance below the upper face thereof and said transverse head being capable of a free endwise movement with relation to said body portion, and a spring bearing between said spider and said head.

In testimony whereof I aflix my signature in presence of two witnesses.

GUSTAVUS R. YEOMANS.

Witnesses:

N. E. KIDD, PEARL MURPHYE.

internally Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D; G. 

